Soulwrest is a unique Ezomyte Staff.
While wielding this staff, any time a corpse is consumed (from skills like Spirit Offering), used for Raise Zombie, or exploded (Cremation, Detonate Dead, Volatile Dead, Bubonic Trail's Death Walk), a Phantasm (as created typically by Summon Phantasm on Kill Support) is created, gaining the effects of any Support Gem socketed into the staff. These support gems do not need to be linked to confer their bonuses to the Phantasms.